72621150 has 48 divisors (see below), whose sum is σ = 205832064. Its totient is φ = 16598880.

The previous prime is 72621139. The next prime is 72621151. The reversal of 72621150 is 5112627.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72621150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72621151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33532 + ... + 35631.

It is an arithmetic number, because the mean of its divisors is an integer number (4288168).

Almost surely, 2^72621150 is an apocalyptic number.

72621150 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72621150 is an abundant number, since it is smaller than the sum of its proper divisors (133210914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72621150 is a wasteful number, since it uses less digits than its factorization.

72621150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69185 (or 69180 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 72621150 is about 8521.8043863961. The cubic root of 72621150 is about 417.2096778037.

Adding to 72621150 its reverse (5112627), we get a palindrome (77733777).

It can be divided in two parts, 72621 and 150, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 72621150 in words is "seventy-two million, six hundred twenty-one thousand, one hundred fifty".